Support Script for showing how javascript works in jsbin

js-support.js

(function() { 
   
   var output = $("<pre>");
   $("body").append(output);
   
   window.write = function() {
       var message = arguments[0];
       var formatted = message;
       
       if (arguments.length > 1) {
           
           formatted = formatted.replace('{{', '__o__');
           formatted = formatted.replace('}}', '__c__');
           
           for(var i = 1; i < arguments.length; i++) {
               var par = arguments[i];
               var search = '{' + (i - 1) + '}';
               
               formatted = formatted.replace(search, '' + par);
           }
           
           formatted = formatted.replace('__o__', '{');
           formatted = formatted.replace('__c__', '}');
       }
       
       output.html(output.html() + formatted);
   };
   
   window.writeln = function() {
       var newArgs = [];
       
       for(var i = 0; i < arguments.length; i++) {
           
           var arg = arguments[i];
           
           if (i === 0) {
               arg = arg + '\n';
           } 
           
           newArgs.push(arg);
       }
       
       window.write.apply(this, newArgs);
   };
    
})();